Geoscience Reference
In-Depth Information
0.5) precursors. The starting compounds were at 180
C in a Teflon-lined steel auto-
clave 90% filled
[129]
.
Chou and Kanatzidis
[133]
have synthesized the novel type of transition and
main group metal polychalcogenides, and some of them are inaccessible by tradi-
tional solution methods. These authors have used organic counterions R4E
1
(E
alkyl) to synthesize these polychalcoarsenates.
With the recent discovery of several nonlinear optical properties among
arsenates, like in KTiOAsO
4
, there is a growing interest for new NLO materials
from the arsenate family
[134]
. Among these, NaNb
2
AsO
8
is an important material
showing a great promise as second harmonic generator material
[135]
.
Thus, the growth of complex coordinated compounds like sulfides, selenides,
tellurides, and arsenates under hydrothermal conditions is very important.
P, R
Ph; E
N, R
5
5
5
5
References
[1] A.A. Kaminskii, G.R. Verdun, N.M. Khaidukov, New CW-laser crystals with semicon-
ductor laser pumping in anisotropic fluorides containing Nd
3
1
ions, obtained by hydro-
thermal method, Doklady Akad. Nauk. Physika 328 (1993) 181
195.
[2] L.N. Demianets, Hydrothermal synthesis of new compounds, in: K. Byrappa (Ed.),
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355.
[3] P.M. Bridenbaugh, J.O. Eckert, G. Nykolak, Thomas, W. Wilson, L.N. Demianets,
R.E. Riman, R.A. Laudise, Hydrothermal growth and properties of KGdF
4
, J. Cryst.
Growth 144 (1994) 243
252.
[4] A.A. Kaminskii, V.S. Mironov, S.N. Bagaev, N.M. Khaidukov, M.F. Joubert, B. Jacquier,
et al., Spectroscopy and laser action of anisotropic single-centered LiKYF
5
:Nd
3
1
grown by
the hydrothermal method, Phys. Stat. Solidi. 145 (1994) 177
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1
laser crystal,
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[10] A.A. Kaminskii, N.M. Khaidukov, W. Koechner, H.R. Verdun, New Laser-Diode-
Pumped CW Crystalline Lasers Based on Nd3
+
-Ion Doped Hydrothermal Fluorides,
Phys. Stat. Solidi. 132 (1992) K105.
[11] D.W. Aldous, Solvothermal Chemistry of Early Transition Metal Fluorides, Ph.D.
Thesis, University of St. Andrews, UK, 2008.
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